Calculates CRC32 checksums (ZIP, GZip, LZX compatible). Works also on files
larger than free amount of memory.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  253     622  40.7% -lh5- 37cf Jan 18  2004 crc32.info
[generic]                 1806    3640  49.6% -lh5- f3ff Jan 18  2004 crc32/crc32.mos
[generic]                  893    1836  48.6% -lh5- 9bd0 Jan 18  2004 crc32/crc32.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    2952    6098  48.4%            Feb  1 19:51